From: Jason Gunthorpe <jgg@nvidia.com>
To: Tom Talpey <tom@talpey.com>
Cc: "yangx.jy@fujitsu.com" <yangx.jy@fujitsu.com>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"yanjun.zhu@linux.dev" <yanjun.zhu@linux.dev>,
"rpearsonhpe@gmail.com" <rpearsonhpe@gmail.com>,
"y-goto@fujitsu.com" <y-goto@fujitsu.com>,
"lizhijian@fujitsu.com" <lizhijian@fujitsu.com>,
"tomasz.gromadzki@intel.com" <tomasz.gromadzki@intel.com>
Subject: Re: [RFC PATCH 2/2] RDMA/rxe: Add RDMA Atomic Write operation
Date: Fri, 7 Jan 2022 13:11:00 -0400 [thread overview]
Message-ID: <20220107171100.GA3093627@nvidia.com> (raw)
In-Reply-To: <130d8b4d-3565-eba1-c56a-58155d3303b2@talpey.com>
On Fri, Jan 07, 2022 at 10:50:47AM -0500, Tom Talpey wrote:
> Keep in mind that ATOMIC_WRITE allows an application to poll a 64-bit
> location to receive a result, without reaping any completion first. The
> value must appear after all prior operations have completed. And the
> entire 64-bit value must be intact. That's it.
This is exactly why it is a release operation.
Jason
next prev parent reply other threads:[~2022-01-07 17:11 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-30 12:14 [RFC PATCH 0/2] RDMA/rxe: Add RDMA Atomic Write operation Xiao Yang
2021-12-30 12:14 ` [RFC PATCH 1/2] RDMA/rxe: Rename send_atomic_ack() and atomic member of struct resp_res Xiao Yang
2021-12-30 12:14 ` [RFC PATCH 2/2] RDMA/rxe: Add RDMA Atomic Write operation Xiao Yang
2021-12-30 21:39 ` Tom Talpey
2021-12-31 8:29 ` yangx.jy
2021-12-31 15:09 ` Tom Talpey
[not found] ` <61D563B4.2070106@fujitsu.com>
2022-01-07 15:50 ` Tom Talpey
2022-01-07 17:11 ` Jason Gunthorpe [this message]
2022-01-12 9:24 ` yangx.jy
2022-01-05 23:53 ` Jason Gunthorpe
2022-01-06 10:52 ` yangx.jy
2022-01-06 13:00 ` Jason Gunthorpe
2022-01-07 2:15 ` yangx.jy
2022-01-07 12:22 ` Jason Gunthorpe
2022-01-07 15:38 ` Tom Talpey
2022-01-07 19:28 ` Jason Gunthorpe
2022-01-07 20:11 ` Tom Talpey
2021-12-31 3:01 ` lizhijian
2021-12-31 6:02 ` yangx.jy
2021-12-30 19:21 ` [RFC PATCH 0/2] " Gromadzki, Tomasz
2021-12-30 21:42 ` Tom Talpey
2021-12-31 6:30 ` yangx.jy
2022-01-04 9:28 ` yangx.jy
2022-01-04 15:17 ` Tom Talpey
2022-01-05 1:00 ` yangx.jy
2022-01-06 0:01 ` Jason Gunthorpe
2022-01-06 1:54 ` yangx.jy
2022-01-10 15:42 ` Jason Gunthorpe
2022-01-11 2:34 ` yangx.jy
2022-01-11 23:29 ` Jason Gunthorpe
2022-02-11 13:18 ` Gromadzki, Tomasz
2022-02-17 3:50 ` yangx.jy
2022-02-19 10:37 ` Leon Romanovsky
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